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Senior Mechanical Engineer (Vessels)

ProtingentSeattle, WAMay 17th, 2026
Job DescriptionPosition Title: Senior Mechanical Engineer (Vessels)Position Description: Protingent Staffing has an exciting contract Senior Mechanical Engineer opportunity.Job Responsibilities:Perform detailed design, analysis, and documentation for ASME Section III Class HB and/or Section VIII division 2 vessels, including nozzles, flanges, support brackets, and other support elements used in nuclear facilities.Develop and maintain design specifications, calculations, load evaluations, and qualification reports in compliance with ASME and related nuclear codes and standards.Prepare engineering design packages, including performing or reviewing design calculations to ensure accuracy and code compliance.Collaborate with multidisciplinary engineering teams to define design requirements, resolve technical issues, and optimize component performance.Interface with internal quality teams, third-party reviewers, and regulatory bodies to support audits, design reviews, and code certification processes.Support material selection, fabrication requirements, inspection criteria, and acceptance standards for Class HB and Section VIII components.Participate in engineering change processes, nonconformance evaluations, and corrective action development as required.Maintain current knowledge of ASME Section III and/or VIII revisions, NRC guidance, and industry best practices.Job Qualifications:B.S. in Mechanical Engineering or related discipline from an accredited university.Minimum of six years of equipment / component design experience for level 10 or minimum of ten years of equipment / component design experience for level 11; relevant M.S. degree credited as two years of experience.Experience in Design for Manufacturability (DFM) and Design for Assembly (DFA).Experience in finite element stress analysis, mechanical analysis methods, and commercial mechanical stress analysis modeling tools with emphasis on ANSYS.Excellent writing and communication skills.Strong analytical/problem solving skills, creative thinker.Working experience with ASME Boiler and Pressure Vessel Code Section III and or VIII division 2 (not design by rule).Ability to work with minimum direction to solve challenging problems.Ability to work on multiple tasks concurrently during a given work week.Familiarity with CAD, SolidWorks preferred.The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork.Travel Required: 0-5%.Job Details:Job Type: ContractPay Rate Range: $69-$115/hr (Pay rates are approved based on candidate location, education and experience)Location: 100% RemoteExport control regulations require candidates to be a U.S. Citizen, U.S. Legal Permanent Resident, or of a protected person statusBenefits Package: Protingent offers competitive salaries, insurance plan options (HDHP plan or POS plan), education/certification reimbursement, pre-tax commuter benefits, Paid Time Off (PTO), and an administered 401k plan.#TerraProAbout Protingent: Protingent is an Award-Winning provider of top-tier Engineering and IT talent, trusted by companies at the forefront of innovation — from Software and Aerospace to AI, Clean Tech, Medical Devices, and Connected Technologies. We’re passionate about making a positive impact by connecting exceptional talent with meaningful opportunities and helping our clients build the future.
Senior Mechanical Engineer (Vessels) at Protingent...